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  <title>Retrieves cached information from APC's data store</title>
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 <body class="docs"><div id="layout">
  <div id="layout-content"><div id="function.apc-cache-info" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">apc_cache_info</h1>
  <p class="verinfo">(PECL apc &gt;= 2.0.0)</p><p class="refpurpose"><span class="refname">apc_cache_info</span> &mdash; <span class="dc-title">
   Retrieves cached information from APC&#039;s data store
  </span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.apc-cache-info-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>apc_cache_info</strong></span>
    ([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$cache_type</code><span class="initializer"> = &quot;&quot;</span></span>
   [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$limited</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span>
  ]] ) : <span class="type">array</span></div>

  <p class="para rdfs-comment">
   Retrieves cached information and meta-data from APC&#039;s data store.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.apc-cache-info-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">cache_type</code></dt>

     <dd>

      <p class="para">
       If <code class="parameter">cache_type</code> is &quot;<em>user</em>&quot;,
       information about the user cache will be returned.
      </p>
      <p class="para"> 
       If <code class="parameter">cache_type</code> is &quot;<em>filehits</em>&quot;,
       information about which files have been served from the bytecode cache 
       for the current request will be returned. This feature must be enabled at
       compile time using <strong class="option configure">--enable-filehits</strong>
.
      </p>
      <p class="para">
       If an invalid or no <code class="parameter">cache_type</code> is specified, information about 
       the system cache (cached files) will be returned.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">limited</code></dt>

     <dd>

      <p class="para">
       If <code class="parameter">limited</code> is <strong><code>TRUE</code></strong>, the
       return value will exclude the individual list of cache entries.  This
       is useful when trying to optimize calls for statistics gathering.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.apc-cache-info-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Array of cached data (and meta-data) 或者在失败时返回 <strong><code>FALSE</code></strong>
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <span class="simpara">
    <span class="function"><strong>apc_cache_info()</strong></span> will raise a warning if it is unable to
    retrieve APC cache data. This typically occurs when APC is not enabled.
   </span>
  </p></blockquote>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.apc-cache-info-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>3.0.11</td>
       <td>
        The <code class="parameter">limited</code> parameter was introduced.
       </td>
      </tr>

      <tr>
       <td>3.0.16</td>
       <td>
        The &quot;<em>filehits</em>&quot; option for the
        <code class="parameter">cache_type</code> parameter was introduced.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.apc-cache-info-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-400">
    <p><strong>Example #1 A <span class="function"><strong>apc_cache_info()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">apc_cache_info</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [num_slots] =&gt; 2000
    [ttl] =&gt; 0
    [num_hits] =&gt; 9
    [num_misses] =&gt; 3
    [start_time] =&gt; 1123958803
    [cache_list] =&gt; Array
        (
            [0] =&gt; Array
                (
                    [filename] =&gt; /path/to/apc_test.php
                    [device] =&gt; 29954
                    [inode] =&gt; 1130511
                    [type] =&gt; file
                    [num_hits] =&gt; 1
                    [mtime] =&gt; 1123960686
                    [creation_time] =&gt; 1123960696
                    [deletion_time] =&gt; 0
                    [access_time] =&gt; 1123962864
                    [ref_count] =&gt; 1
                    [mem_size] =&gt; 677
                )
            [1] =&gt; Array (...iterates for each cached file)
)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.apc-cache-info-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><a href="apc.configuration.html" class="link">APC configuration directives</a></li>
    <li class="member"><span class="methodname"><a href="apciterator.gettotalsize.html" class="methodname" rel="rdfs-seeAlso">APCIterator::getTotalSize()</a> - 获取所有缓存的尺寸大小</span></li>
    <li class="member"><span class="methodname"><a href="apciterator.gettotalhits.html" class="methodname" rel="rdfs-seeAlso">APCIterator::getTotalHits()</a> - 获取缓存命中数</span></li>
    <li class="member"><span class="methodname"><a href="apciterator.gettotalcount.html" class="methodname" rel="rdfs-seeAlso">APCIterator::getTotalCount()</a> - 获取总数</span></li>
   </ul>
  </p>
 </div>


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